Bontrager Circuit Men's Shoe Color:Viper Red ESS Support Shank

ESS Support Shank

Designed to push your limits with patented XYZ Optics® for razor sharp clarity and secure grip of Unobtanium®

Patented Vaporator Lens Technology with Porex and more

FLEX ADJUSTABLE SHELL

Wide range of armrest positions

Bontrager Circuit Men's Shoe Color:Viper Red ESS Support ShankUnlock your potential and go farther with the Circuit road shoe. Equal parts stiff and comfortable, compatible with both 2 bolt SPD style and 3 bolt cleats, this shoe is ready for anything. Key features inForm Race last offers a slightly roomier, high performance fit Nylon composite Bronze Series sole PowerTruss sole design improves stiffness without adding significant weight Boa L6 dial for precise adjustment Stiffness index 7 of 14 Compatible with 2